a top view and a cross-sectional view of the EL display device of the present invention; FIG. 14 is a cross-sectional view of the EL display device of the present invention; FIG. 15 is a cross-sectional view of the EL display device of the present invention; FIGS. 16A and 16B are a top view and a cross-sectional view of the EL display device of the present invention; FIG. 17 is a cross-sectional v